backport: re PR target/83946 (Safe Indirect Jumps broken on AIX)

[gcc]

2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	Backport from mainline
	2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
		    David Edelsohn  <dje.gcc@gmail.com>

	PR target/83946
	* config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
	Change "crset eq" to "crset 2".
	(*call_value_indirect_nonlocal_sysv<mode>): Likewise.
	(*call_indirect_aix<mode>_nospec): Likewise.
	(*call_value_indirect_aix<mode>_nospec): Likewise.
	(*call_indirect_elfv2<mode>_nospec): Likewise.
	(*call_value_indirect_elfv2<mode>_nospec): Likewise.
	(*sibcall_nonlocal_sysv<mode>): Change "crset eq" to "crset 2";
	change assembly output from . to $.
	(*sibcall_value_nonlocal_sysv<mode>): Likewise.
	(indirect_jump<mode>_nospec): Change assembly output from . to $.
	(*tablejump<mode>_internal1_nospec): Likewise.

[gcc/testsuite]

2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	Backport from mainline
	2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
		    David Edelsohn  <dje.gcc@gmail.com>

	PR target/83946
	* gcc.target/powerpc/safe-indirect-jump-1.c: Change expected
	assembly output from "crset eq" to "crset 2".
	* gcc.target/powerpc/safe-indirect-jump-2.c: Change expected
	assembly output from . to $.
	* gcc.target/powerpc/safe-indirect-jump-3.c: Likewise.
	* gcc.target/powerpc/safe-indirect-jump-1.c: Change expected
	assembly output from "crset eq" to "crset 2".
	* gcc.target/powerpc/safe-indirect-jump-8.c: Change expected
	assembly output from "crset eq" to "crset 2", and from . to $.

From-SVN: r256932

gcc/ChangeLog

@@ -1,3 +1,23 @@
+2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+
+	Backport from mainline
+	2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+		    David Edelsohn  <dje.gcc@gmail.com>
+
+	PR target/83946
+	* config/rs6000/rs6000.md (*call_indirect_nonlocal_sysv<mode>):
+	Change "crset eq" to "crset 2".
+	(*call_value_indirect_nonlocal_sysv<mode>): Likewise.
+	(*call_indirect_aix<mode>_nospec): Likewise.
+	(*call_value_indirect_aix<mode>_nospec): Likewise.
+	(*call_indirect_elfv2<mode>_nospec): Likewise.
+	(*call_value_indirect_elfv2<mode>_nospec): Likewise.
+	(*sibcall_nonlocal_sysv<mode>): Change "crset eq" to "crset 2";
+	change assembly output from . to $.
+	(*sibcall_value_nonlocal_sysv<mode>): Likewise.
+	(indirect_jump<mode>_nospec): Change assembly output from . to $.
+	(*tablejump<mode>_internal1_nospec): Likewise.
+
 2018-01-21  Oleg Endo  <olegendo@gcc.gnu.org>
 
 	Backport from mainline

gcc/config/rs6000/rs6000.md

@@ -11006,7 +11006,7 @@
       || which_alternative == 1 || which_alternative == 3)
     return "b%T0l";
   else
-    return "crset eq\;beq%T0l-";
+    return "crset 2\;beq%T0l-";
 }
   [(set_attr "type" "jmpreg,jmpreg,jmpreg,jmpreg")
    (set (attr "length")
@@ -11119,7 +11119,7 @@
       || which_alternative == 1 || which_alternative == 3)
     return "b%T1l";
   else
-    return "crset eq\;beq%T1l-";
+    return "crset 2\;beq%T1l-";
 }
   [(set_attr "type" "jmpreg,jmpreg,jmpreg,jmpreg")
    (set (attr "length")
@@ -11280,7 +11280,7 @@
    (set (reg:P TOC_REGNUM) (unspec:P [(match_operand:P 3 "const_int_operand" "n,n")] UNSPEC_TOCSLOT))
    (clobber (reg:P LR_REGNO))]
   "DEFAULT_ABI == ABI_AIX && !rs6000_speculate_indirect_jumps"
-  "crset eq\;<ptrload> 2,%2\;beq%T0l-\;<ptrload> 2,%3(1)"
+  "crset 2\;<ptrload> 2,%2\;beq%T0l-\;<ptrload> 2,%3(1)"
   [(set_attr "type" "jmpreg")
    (set_attr "length" "16")])
 
@@ -11304,7 +11304,7 @@
    (set (reg:P TOC_REGNUM) (unspec:P [(match_operand:P 4 "const_int_operand" "n,n")] UNSPEC_TOCSLOT))
    (clobber (reg:P LR_REGNO))]
   "DEFAULT_ABI == ABI_AIX && !rs6000_speculate_indirect_jumps"
-  "crset eq\;<ptrload> 2,%3\;beq%T1l-\;<ptrload> 2,%4(1)"
+  "crset 2\;<ptrload> 2,%3\;beq%T1l-\;<ptrload> 2,%4(1)"
   [(set_attr "type" "jmpreg")
    (set_attr "length" "16")])
 
@@ -11329,7 +11329,7 @@
    (set (reg:P TOC_REGNUM) (unspec:P [(match_operand:P 2 "const_int_operand" "n,n")] UNSPEC_TOCSLOT))
    (clobber (reg:P LR_REGNO))]
   "DEFAULT_ABI == ABI_ELFv2 && !rs6000_speculate_indirect_jumps"
-  "crset eq\;beq%T0l-\;<ptrload> 2,%2(1)"
+  "crset 2\;beq%T0l-\;<ptrload> 2,%2(1)"
   [(set_attr "type" "jmpreg")
    (set_attr "length" "12")])
 
@@ -11352,7 +11352,7 @@
    (set (reg:P TOC_REGNUM) (unspec:P [(match_operand:P 3 "const_int_operand" "n,n")] UNSPEC_TOCSLOT))
    (clobber (reg:P LR_REGNO))]
   "DEFAULT_ABI == ABI_ELFv2 && !rs6000_speculate_indirect_jumps"
-  "crset eq\;beq%T1l-\;<ptrload> 2,%3(1)"
+  "crset 2\;beq%T1l-\;<ptrload> 2,%3(1)"
   [(set_attr "type" "jmpreg")
    (set_attr "length" "12")])
 
@@ -11536,7 +11536,7 @@
 	return \"b%T0\";
       else
 	/* Can use CR0 since it is volatile across sibcalls.  */
-	return \"crset eq\;beq%T0-\;b .\";
+	return \"crset 2\;beq%T0-\;b $\";
     }
   else if (DEFAULT_ABI == ABI_V4 && flag_pic)
     {
@@ -11593,7 +11593,7 @@
 	return \"b%T1\";
       else
 	/* Can use CR0 since it is volatile across sibcalls.  */
-	return \"crset eq\;beq%T1-\;b .\";
+	return \"crset 2\;beq%T1-\;b $\";
     }
   else if (DEFAULT_ABI == ABI_V4 && flag_pic)
     {
@@ -13026,7 +13026,7 @@
   [(set (pc) (match_operand:P 0 "register_operand" "c,*l"))
    (clobber (match_operand:CC 1 "cc_reg_operand" "=y,y"))]
   "!rs6000_speculate_indirect_jumps"
-  "crset %E1\;beq%T0- %1\;b ."
+  "crset %E1\;beq%T0- %1\;b $"
   [(set_attr "type" "jmpreg")
    (set_attr "length" "12")])
 
@@ -13133,7 +13133,7 @@
    (use (label_ref (match_operand 1)))
    (clobber (match_operand:CC 2 "cc_reg_operand" "=y,y"))]
   "!rs6000_speculate_indirect_jumps"
-  "crset %E2\;beq%T0- %2\;b ."
+  "crset %E2\;beq%T0- %2\;b $"
   [(set_attr "type" "jmpreg")
    (set_attr "length" "12")])
 

gcc/testsuite/ChangeLog

@@ -1,3 +1,20 @@
+2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+
+	Backport from mainline
+	2018-01-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+		    David Edelsohn  <dje.gcc@gmail.com>
+
+	PR target/83946
+	* gcc.target/powerpc/safe-indirect-jump-1.c: Change expected
+	assembly output from "crset eq" to "crset 2".
+	* gcc.target/powerpc/safe-indirect-jump-2.c: Change expected
+	assembly output from . to $.
+	* gcc.target/powerpc/safe-indirect-jump-3.c: Likewise.
+	* gcc.target/powerpc/safe-indirect-jump-1.c: Change expected
+	assembly output from "crset eq" to "crset 2".
+	* gcc.target/powerpc/safe-indirect-jump-8.c: Change expected
+	assembly output from "crset eq" to "crset 2", and from . to $.
+
 2018-01-20  Steven G. Kargl  <kargl@gcc.gnu.org>
 
 	PR fortran/83900

gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-1.c

@@ -10,5 +10,5 @@ int bar ()
   return (*f) ();
 }
 
-/* { dg-final { scan-assembler "crset eq" } } */
+/* { dg-final { scan-assembler "crset 2" } } */
 /* { dg-final { scan-assembler "beqctrl-" } } */

gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-2.c

@@ -30,4 +30,4 @@ int foo (int x)
 
 /* { dg-final { scan-assembler "crset 30" } } */
 /* { dg-final { scan-assembler "beqctr- 7" } } */
-/* { dg-final { scan-assembler "b ." } } */
+/* { dg-final { scan-assembler {b \$} } } */

gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-3.c

@@ -49,4 +49,4 @@ int foo (int x)
 
 /* { dg-final { scan-assembler "crset 30" } } */
 /* { dg-final { scan-assembler "beqctr- 7" } } */
-/* { dg-final { scan-assembler "b ." } } */
+/* { dg-final { scan-assembler {b \$} } } */

gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-7.c

@@ -10,5 +10,5 @@ int bar ()
   return (*f) () * 53;
 }
 
-/* { dg-final { scan-assembler "crset eq" } } */
+/* { dg-final { scan-assembler "crset 2" } } */
 /* { dg-final { scan-assembler "beqctrl-" } } */

gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-8.c

@@ -10,6 +10,6 @@ int bar ()
   return (*f) ();
 }
 
-/* { dg-final { scan-assembler "crset eq" } } */
+/* { dg-final { scan-assembler "crset 2" } } */
 /* { dg-final { scan-assembler "beqctr-" } } */
-/* { dg-final { scan-assembler "b ." } } */
+/* { dg-final { scan-assembler {b \$} } } */